Attachment for pipe machines



L. P. HUFSTEDLER.

ATTACHMENT FOR PIPE MACHINES.

APPLICATION FILED JULY 9.1920.

- Patented 7,

2 SHEETS-SHEET!- WITNESSES L. PHWS TEDLER,

ATTORNEYS L. P. HUFSTEDLER.

ATTACHMENT FOR PIPE MACHINES. APPLlCATiON HLED JULY 9,1920.

1,405,784. Patented Feb. 7, 1922.

2 SHEETS-SHEET 2- INVENTOR E 8158 2 8 g i L P HUFOTEDLER A TTOR/VEYS *Be it- =known that UNITED. STATE PATENT, oFFice' Dreams POWELL .HUFSTEDLER, or T bKLAHoM imr QBM N R 'i -MMH To all whom it may concern: I I, LAURENCE P. Hursrnornn, a citizen of the United States, and

a resident of Tulsa, in the county of Tulsa and State of Oklahoma, have inventedcertain new and useful Improvements in Attachments for Pipe. Machines, of which the following is aspecification.

invention is an improvement in attachments for pipe machines, and has for its object to provide an attachment of the character specified, adapted to be arranged between the dies and the chuck of a pipe machine, for

cutting the pipe at such point, wherein a ring is provided for attachment to the dieframe,

the said ring having means for carrying a cutter, and having means for adjusting the cutter toward and from the axis of the pipe.

In the drawings:

Figure 1 is a side view o f-a portion of the pipe machine provided with the attachment,

Figure 2 is a front view of the ring and frame,

Figure 3 is a section on th'e'line 3-3 of Figure 2,

Figure 4 is a section on the line 4'4; of s Figure 3, t

Figure 5 is a perspective View of the cutter, Figure 6 is a view looking from the outside of the die frame with parts broken away. The present embodiment of the invention is shown in connection with a pipe machine of the Bignaul and Keeler types, having the bed 1, the die supporting frame 2, and the chuck 3, and the attachment is supported by the die frame 2. The attachment comprises a ring 5, which is secured to the die frame, by means of screws 6 as shown, and there is connected with the ring a guideway 7, the guideway extending radially from one side of the ring. This guideway is recessed on the face adj a cent to the chuck, as indicated at 8, and a carriage 9 is mounted to slide in the groove or recess, the walls of the recess being undercut as shown, and the carriage being shaped to fit.

The recess or groove opens at the outer end of the guide, anda plate 10 is arranged transversely of the said end, to limit the outward movement of the carriage or slide, the plate being detachably held to the guide by means indicated at 11 in the form of belts or screws. The inner end of the carriage is concave to correspond with the curve of the inner edge of the ring, and that face of the carriage or Specification of I ettersratcnt.

. .7 Patented Feb. 7, 1922. n iieation fiIed'JuIy 9,19 0. .Seria1N '394 3 I slide which is remote from the ring 5, is recessed as indicated at 12, to receive the cutter blade 13.

The blade rests on a hardened steel plate 14k which 118 arranged directly below the plate is held in place by screws 16.

By loosening the screws 16, the cutter 13 may be adjusted toward. and from the pipe 1 at the axis of the ring. The carriage is moved by means of a screw 17 This screw is j o-urnaled in the plate 10', and it passes through a nut 18 secured to the carriage as shown in Figure 3. The screw is held in the plate by means of a collar 19 mounted on the same just wlth-in the plate, and it has a handle 20 at its outer end. for convenience I in manipulating the same.

It will be observed that the cutter 13 may be readily removed from the carriage by simply removing the plate 15 thereby exposing the entire cutter. This'is made possible since the groove which receives the cutter is formed in the outer face of the carriage 9. Further, it will be noted that the plate 10 which is secured to the end of the guide not only serves as a means for limiting the endwise movement of the carriage but as a means for causing the carriage to move longitudinally when the screw is rotated.

, The operation of the construction just described is as follows: 1th the pipe 4 in place in the machine, when it is desired to cut the same, the'carriage is adjusted toward the pipe until the corner of the cutter engages the same. When the pipe is rotated the cutter will gradually cut through the pipe. The attachment does not interfere with the operation of the pipe machine, an the pipe may be threaded and afterwards cut at the proper point.

In Figure 6 the attachment is shown applied to a Peerless machine, the ring 5 being connected with the die frame 21, which supports the dies 22 moved toward and from each other by means of the rod 23. This rod 1 of the guide, a carriage fitted Within said groove "and having its outer face provided with a groove, a cutter arranged in the groove of said carriage, an elongated plate flatly secured tothe outer face of said carriageand engaging said cutter to hold the same in position, a secondiplate flatly se-' cured to the outer end of said guide for closingthe adjacent end of said 'first named groove, and means extending through said second named plate and engaged with said carriage for moving the same longitudinally, and a metal plate confined between the lower end of said cutterv and the adjacent Wall of said second named gr0ove.

LAURENCE POWELLVHUFS'QI'EDLEQR. 

